请帮忙修改这篇英语作文的错误语法.
Today,my parents are not at home,I want to do something meaningful.First of all,I must finish my homework,because I can't let parents worried about my study.Second,I like mother,then wash clothes,I cleaned the room again,let the home becomes very clean.Finally,I need to make a wonderful parents,they came back for dinner,I hope I can give them a surprise,let them know that their children very sensible.When I finish these afterwards,I believe I grew up.